Question

In triangle ABC, Angle B=Angle C and ray AX bisects the exterior Angle DAC. If Angle DAX=70, then Angle ACB= *​

Answer 1

Step-by-step explanation:

Angle DAN=70

AN bistects angle DAD

so, angle NAC =DAN=70

DB is a straight line, so angle DAB is 180

=>BAC+70+70=180

=>BAC=180-(70+70)

=180-140

=40

given , angle B=C, Let them be x

so, angle A+B+C=180(sum of angles of a

=>40+x+x=180 triangle is 180)

=> 2x=180-40

=>x=140/2

=70

Hence = 40,70,70.